US9607781B2 - Tap changer and vacuum interrupter for a tap changer of this kind - Google Patents

Tap changer and vacuum interrupter for a tap changer of this kind Download PDF

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Publication number
US9607781B2
US9607781B2 US13/878,059 US201113878059A US9607781B2 US 9607781 B2 US9607781 B2 US 9607781B2 US 201113878059 A US201113878059 A US 201113878059A US 9607781 B2 US9607781 B2 US 9607781B2
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US
United States
Prior art keywords
contact member
tap changer
switching tube
vacuum switching
movable
Prior art date
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Active, expires
Application number
US13/878,059
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English (en)
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US20140034463A1 (en
Inventor
Wolfgang Albrecht
Christian Hammer
Werner Hartmann
Silvio Kosse
Andreas Lawall
Roman Renz
Andreas Stelzer
Joerg Teichmann
Norbert Wenzel
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Siemens AG
Siemens Corp
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Siemens AG
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Assigned to MASCHINENFABRIK REINHAUSEN GMBH, SIEMENS AG reassignment MASCHINENFABRIK REINHAUSEN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALBRECHT, WOLFGANG, HAMMER, CHRISTIAN, HARTMANN, WERNER, KOSSE, SILVIO, WENZEL, NORBERT, TEICHMANN, JOERG, LAWALL, ANDREAS, RENZ, ROMAN, STELZER, ANDREAS
Publication of US20140034463A1 publication Critical patent/US20140034463A1/en
Assigned to SIEMENS AG reassignment SIEMENS AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MASCHINENFABRIK REINHAUSEN GMBH
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0038—Tap change devices making use of vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
    • H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber

Definitions

  • the invention relates to a tap changer with vacuum switching tubes for uninterrupted switching between winding taps of a tapped transformer.
  • the invention further relates to a novel vacuum switching tube particularly suitable for such a tap changer.
  • a tap changer having in total four vacuum switching tubes per phase is known from DE 20 21 575.
  • a respective vacuum switching tube as main switch and a respective further vacuum switching tube, in series connection with a switch-over resistance, as resistance switch.
  • the main switch of the side switching off is opened and thereupon the resistance switch of the side taking over closes so that a compensating current limited by the switch-over resistors flows between the two taps n and n+1.
  • the main switch of the side taking over closes so that the entire load current is conducted from the new winding tap n+1 to the load concluding the changeover.
  • a further tap changer in which further mechanical switch elements are provided between the electrical connection of the two vacuum switching tubes of each load branch and the load is described in DE 10 2009 048 813 that is not prior published.
  • the known tap changer requires four separate vacuum switching tubes per phase.
  • the large amount of space required for these vacuum switching tubes themselves, as well as the associated actuated mechanism is disadvantageous.
  • due to the high component outlay such known constructions are relatively expensive.
  • the tap changer according to the invention is based on the general idea of combining the main switch in one load branch and the resistance switch in the other load branch to form a single vacuum switching tube.
  • the vacuum switching tube according to the invention is based on the general idea of combining the functionality of two tubes in a tap changer through the combination of a constructional form of a tube with only one movable contact system and two alternative—depending on the type of changeover switch—contactable fixed contacts.
  • the novel vacuum switching tube is of simple construction; it does not have, in particular, any internally located contact compression springs or slide contacts.
  • Particularly advantageous in the case of the vacuum switching tube according to the invention is the single movable contact system that occupies less space and requires only a simple actuating mechanism.
  • Vacuum switching tubes with two contact locations are already known per se.
  • DE 333443767 relates to a vacuum switching tube with two contact pairs that are electrically connected in series in a single vacuum space, the contact pairs being actuatable simultaneously.
  • DE 197 56 308 C1 relates to a similar vacuum switching tube with two switch paths on a common axis, where internally disposed contact compression springs are provided.
  • EP 0 258 614 B1 describes the combination of a vacuum switching tube and a specific electrical connection with a tap changer. In this case, several switching paths are arranged in one vacuum space, which causes a complicated construction of the vacuum switching tube with annular fixed contacts.
  • DE 10 2006 033 B3 describes a further vacuum switching tube with a multiple functionality, where here, too, not only annular fixed contacts, but also internally disposed contact pressure springs are required.
  • FIG. 1 shows a tap changer according to the prior art
  • FIG. 2 shows a changeover sequence of such a known tap changer
  • FIG. 3 shows a vacuum switching tube according to the invention
  • FIG. 4 shows a tap changer according to the invention with two vacuum switching tubes according to the invention in schematic illustration
  • FIG. 5 shows a further tap changer according to the invention.
  • a known tap changer is shown in FIG. 1 . It has a first load branch in which a vacuum switching tube MSV a acting as a main switch as well as parallel thereto a switch-over resistance R a and a vacuum switching tube TTV a acting as a resistance switch.
  • the second load branch comprises a vacuum switching tube MSV b as well as parallel thereto a further switch-over resistance R b and a vacuum switching tube TTV b .
  • the known tap changer thus has two vacuum switching cells per load branch, therefore four vacuum switching cells per phase in total.
  • FIG. 2 shows the switching sequence of such a known tap changer in the case of changeover from the winding tap n to the winding tap n+1.
  • the starting position, in which the tap n is electrically connected, corresponds with the setting of the individual switching elements illustrated in FIG. 1 .
  • the changeover takes place in the following steps:
  • FIG. 3 shows a combined vacuum switching tube according to the invention. It has a common housing 1 .
  • an upper movable plunger 2 Provided centrally on the longitudinal rotation-symmetry axis s 1 is an upper movable plunger 2 and, at the opposite end, a lower fixed contact terminal 3 .
  • the movable plunger 2 carries a movable contact member 4 at its inner free end.
  • the fixed lower contact terminal 3 itself carries a fixed contact member 5 .
  • an upper encircling annular stationary contact arrangement 6 that extends perpendicular to the longitudinal rotation-symmetry axis S 1 in the plane S 2 that is here illustrated to be horizontal.
  • a fixed contact 8 which is, for example, soldered, is fastened to the contact arrangement 6 .
  • the fixed contact 8 is, in an end setting of the movable plunger 2 , electrically contactable by the contact member 4 thereof. In the other end setting this contact member 4 electrically connects the stationary contact member 5 of the lower contact terminal 3 .
  • the movable contact member 4 can thus electrically connect, in the manner of a changeover switch, selectably not only the stationary contact 8 , but also the stationary contact member 5 .
  • Bellows 7 are illustrated as well as upper and lower ceramic members 9 , 10 , and in the interior of the housing 1 an upper attenuating screen 11 and a lower attenuating screen 12 .
  • the vacuum switching tube according to the invention is of simple construction; by contrast to the solutions known from the prior art it needs neither internally disposed contact compression springs nor complicated actuating mechanisms or special cage-like contact constructions.
  • FIG. 4 shows schematically a tap changer with two load branches, as has already been explained in FIGS. 1 and 2 .
  • the vacuum switching tube MSV a acting as a main switch of the first load branch and the vacuum switching tube TTV b acting as a resistance switch of the second load branch are combined into a first vacuum switching tube V 1 according to the invention.
  • the vacuum switching tube MSV b acting as a main switch of the second load branch and the vacuum switching tube TTV b acting as a resistance switch of the first load branch are combined into a second vacuum switching tube V 2 according to the invention.
  • FIG. 5 shows a further tap changer according to the invention, in which additional mechanical switching elements (MDC a , MDC b ) are provided that serve for electrical insulation of the load branch not conducting the load current to the load LA.
  • MDC a , MDC b additional mechanical switching elements
  • the advantage of the invention consists in that only two vacuum switching tubes each with only one movable contact member, which is to be driven, are required in order to replace in total four separate vacuum switching tubes in the two load branches.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Housings And Mounting Of Transformers (AREA)
US13/878,059 2010-11-30 2011-11-10 Tap changer and vacuum interrupter for a tap changer of this kind Active 2033-05-15 US9607781B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102010053466A DE102010053466A1 (de) 2010-11-30 2010-11-30 Stufenschalter und Vakuumschaltröhre für einen solchen Stufenschalter
DE102010053466.8 2010-11-30
DE102010053466 2010-11-30
PCT/EP2011/005641 WO2012072181A1 (de) 2010-11-30 2011-11-10 Stufenschalter und vakuumschaltröhre für einen solchen stufenschalter

Publications (2)

Publication Number Publication Date
US20140034463A1 US20140034463A1 (en) 2014-02-06
US9607781B2 true US9607781B2 (en) 2017-03-28

Family

ID=44983486

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/878,059 Active 2033-05-15 US9607781B2 (en) 2010-11-30 2011-11-10 Tap changer and vacuum interrupter for a tap changer of this kind

Country Status (10)

Country Link
US (1) US9607781B2 (de)
EP (1) EP2647022B1 (de)
JP (1) JP2014502049A (de)
KR (1) KR20130136997A (de)
CN (1) CN103354942A (de)
BR (1) BR112013012804A8 (de)
DE (1) DE102010053466A1 (de)
ES (1) ES2540593T3 (de)
PT (1) PT2647022E (de)
WO (1) WO2012072181A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11508535B2 (en) 2019-04-23 2022-11-22 Hitachi Energy Switzerland Ag Spring unit and a diverter switch
US20240021380A1 (en) * 2020-12-09 2024-01-18 Maschinenfabrik Reinhausen Gmbh On-load tap-changer

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012134958A1 (en) * 2011-03-25 2012-10-04 Abb Technology Ag An improved tap changer
CN105580100B (zh) * 2013-08-27 2017-12-12 赖茵豪森机械制造公司 有载分接开关、用于电压调节的可调式变压器和用于在可调式变压器中实施转换的方法
GB2522696A (en) * 2014-02-03 2015-08-05 Gen Electric Improvements in or relating to vacuum switching devices
DE102015106178A1 (de) * 2015-04-22 2016-10-27 Maschinenfabrik Reinhausen Gmbh Laststufenschalter
CN112071672B (zh) * 2020-07-22 2022-10-04 中国电力科学研究院有限公司 一种真空有载分接开关过渡装置和过渡装置的切换方法
CN114883121B (zh) * 2021-08-09 2024-10-01 中国电力科学研究院有限公司 用在真空有载分接开关上的对称型双真空泡过渡电路

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2021575A1 (de) 1970-05-02 1971-12-02 Transformatoren Union Ag Anordnung zur gleichzeitigen Steuerung mehrerer Vakuumschalter
DE3344376A1 (de) 1983-12-08 1985-06-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vakuumschalter
EP0258614A1 (de) 1986-08-06 1988-03-09 Maschinenfabrik Reinhausen Gmbh Stufenschalteinrichtung für Transformatoren
DE19756308C1 (de) 1997-12-12 1999-03-25 Siemens Ag Vakuumschalter, insbesondere für Hochspannung
DE102004004530A1 (de) 2003-01-29 2004-08-12 Kao Corp. Destillationsverfahren
DE102006033422B3 (de) 2006-07-19 2007-11-08 Maschinenfabrik Reinhausen Gmbh Vakuumschaltröhre
EP2085995A1 (de) 2008-01-31 2009-08-05 Schneider Electric Industries SAS Vakuumampulle für elektrisches Schneidegerät, das mindestens die Trennfunktion sicherstellt
EP2200060A1 (de) 2008-12-18 2010-06-23 Schneider Electric Industries SAS Zelle zur Verteilung von Strom mittlerer Spannung
DE102009048813A1 (de) 2009-10-08 2011-04-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10030670C2 (de) * 2000-06-23 2002-06-13 Siemens Ag Vakuumschaltröhre mit zwei Kontaktsystemen
JP4136421B2 (ja) * 2002-03-29 2008-08-20 株式会社高岳製作所 負荷時タップ切換器
DE20321748U1 (de) * 2003-12-19 2009-05-14 Abb Technology Ag Mittelspannungsschaltanlage
EP1925007B1 (de) * 2005-09-12 2018-10-31 Siemens Aktiengesellschaft Vakuumschaltröhre
KR100814514B1 (ko) * 2006-01-27 2008-03-17 가부시끼가이샤 도시바 부하시 탭 전환 장치
CN201359915Y (zh) * 2009-03-04 2009-12-09 上海华明电力设备制造有限公司 有载分接开关的真空泡切换芯子
CN201430078Y (zh) * 2009-06-12 2010-03-24 上海华明电力设备制造有限公司 真空有载分接开关的切换机构

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2021575A1 (de) 1970-05-02 1971-12-02 Transformatoren Union Ag Anordnung zur gleichzeitigen Steuerung mehrerer Vakuumschalter
DE3344376A1 (de) 1983-12-08 1985-06-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Vakuumschalter
EP0258614A1 (de) 1986-08-06 1988-03-09 Maschinenfabrik Reinhausen Gmbh Stufenschalteinrichtung für Transformatoren
DE19756308C1 (de) 1997-12-12 1999-03-25 Siemens Ag Vakuumschalter, insbesondere für Hochspannung
DE102004004530A1 (de) 2003-01-29 2004-08-12 Kao Corp. Destillationsverfahren
DE102006033422B3 (de) 2006-07-19 2007-11-08 Maschinenfabrik Reinhausen Gmbh Vakuumschaltröhre
EP2085995A1 (de) 2008-01-31 2009-08-05 Schneider Electric Industries SAS Vakuumampulle für elektrisches Schneidegerät, das mindestens die Trennfunktion sicherstellt
EP2200060A1 (de) 2008-12-18 2010-06-23 Schneider Electric Industries SAS Zelle zur Verteilung von Strom mittlerer Spannung
DE102009048813A1 (de) 2009-10-08 2011-04-14 Maschinenfabrik Reinhausen Gmbh Stufenschalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11508535B2 (en) 2019-04-23 2022-11-22 Hitachi Energy Switzerland Ag Spring unit and a diverter switch
US20240021380A1 (en) * 2020-12-09 2024-01-18 Maschinenfabrik Reinhausen Gmbh On-load tap-changer
US12469652B2 (en) * 2020-12-09 2025-11-11 Maschinenfabrik Reinhausen Gmbh On-load tap-changer

Also Published As

Publication number Publication date
PT2647022E (pt) 2015-06-26
KR20130136997A (ko) 2013-12-13
JP2014502049A (ja) 2014-01-23
BR112013012804A8 (pt) 2018-04-03
HK1186288A1 (en) 2014-03-07
US20140034463A1 (en) 2014-02-06
ES2540593T3 (es) 2015-07-10
EP2647022A1 (de) 2013-10-09
CN103354942A (zh) 2013-10-16
BR112013012804A2 (pt) 2016-09-13
EP2647022B1 (de) 2015-04-01
DE102010053466A1 (de) 2012-05-31
WO2012072181A1 (de) 2012-06-07

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